. The elements of pathological histology with special reference to practical methods . , a), and theadjacent fissures in the conne<;tive tissue of those parts of the skinwhere the process is still actually advancing; whereas in a phlegmoncaused by the Streptococcus pyogenes the cocci may be found everywherein the tissue, as well as in the interior of blood-vessels and in differentsituations in the inflamed parts. Lastly, a further difference may be brought out in connection withthe pathological anatomy, in the fact that human erysipelas, in contrastto a phlegmon caused by streptococci, runs
. The elements of pathological histology with special reference to practical methods . , a), and theadjacent fissures in the conne<;tive tissue of those parts of the skinwhere the process is still actually advancing; whereas in a phlegmoncaused by the Streptococcus pyogenes the cocci may be found everywherein the tissue, as well as in the interior of blood-vessels and in differentsituations in the inflamed parts. Lastly, a further difference may be brought out in connection withthe pathological anatomy, in the fact that human erysipelas, in contrastto a phlegmon caused by streptococci, runs its course chiefly in theskin and takes but little hold on the deeper parts, and that the exuda-tion is not, as a rule, eitlier fibrinous or purulent. Only in facialerysipelas does the exudation in the loose tissue of the eyelids assumea purulent character, and when an erysipelas extends over joints puru-lent effusions may also take place into them. When the epidermis is raised into blebs in the course of erysipelas,cocci are either not found in them at all, or but very -m^ms&m Fig. 58.—Erysipelas of the Eyelid, x 4J0. The cocci drawn in under a power magni-fying 980 times. (Stained by Weigerts modification of Grams method.) o, Thinned epidermis,permeated by pus corpuscles ; b, Purulent infiltration of cutis; c, Cocci of erysipelas in thepus cells. Examination of Pus-Cocci and of the Streptococcus Erysipelatis.—Cover-glass pre-parations may be stained with any of the basic aniliii colours. For sections Grams method is suitable, or still better Weigerts modification ofit, with preliminary staining. Under these processes, however, the cocci also maybe partially or altogether decolorised. This occurs in cases where they were in the GONOCOCCUS 123 act of dying at the time, and therefore in siicli cases staining with Lottters orKlihnes methyl blue should also be tried. 8. (v.) Gonococcus.—We have here to do with moderately largecocci (Plate III., Fig. 1), which ar
Size: 1926px × 1297px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectpatholo, bookyear1895
